Half of colorectal cancers detected after they've already spread, despite screening programs

Colorectal cancer, the second leading cause of cancer deaths, has already spread in half of all cases by the time it is diagnosed, a national report released on Wednesday shows.
That’s despite publicly funded screening programs across the country.
When colorectal cancer is diagnosed at Stage 1, 90 per cent of patients are still alive after five years. But when diagnosed at Stage 4, survival plummets to under 15 per cent, according to the report by the Canadian Cancer Society, in partn